commit 6c13216b Meson: Always fallback to find_library() for sqlite/libxml2
It's not only Visual Studio that doesn't have a pkg-config file, also Android for example.
commit 94fe681f Meson: Fallback to glib subproject
When libsoup is built as a Meson subproject, it is possible to parent project also built glib as subproject. In that case we should not use the system glib.
commit 7aff0e5f Meson: Fix libxml2 fallback, find_library() adds 'lib' prefix